Valve mechanism.



No. 7|6,3 36. Patented Dec. I6, 1902. T. n. GREEN.

VALVE MECHANISM. (Applicatioh filed Dec. 24, 1901.) (No Model.) 2Sheets-Shani l.

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T. 8.. GREEN. VALVE MECHANISM.

(Application filed Dec. 24, 190 l.)

Patented Dec. l 6, I902- 13 Ill 2/ r- [VITA 78858 A 7w WW OATENT THOMASR. GREEN, OF ANAHEIM, CALIFORNIA, ASSIGNOR OF FIFTY-FIVE PER CENT. TONAPOLEON CALIFORNIA.

HART AND JENNIE D. GREEN, OF ANAHEIM,

VALVE MECHANISM.

SPECIFICATION forming part of Letters Patent No. 7 16,336, datedDecember 16, 1902.

Original application filed September 10, 1901, Serial No. 741981.Divided and this application filed December 24, 1901. Serial No-8'7,105. (No model.)

To all whom it may, concern:

Be it known that [,THOMAS R. Gnnnma citizen of the United States,residing at Anaheim in the county of Orange and State of California,have invented a new and useful Valve Mechanism, of which the followingisa speci- This invention relates to apparatus for controlling theadmission of the actuating fluid or agent to actuate mechanism, andparticularly to valve operating mechanisms; and

,someof the objects of the invention are to provide an apparatus ormechanism of-this character which will be simple in construc- 5 tion andat the same time will be positive and eifective in operation.

An object of this invention is to provide means for operating the valvesor cut-offs controlling theinduction and eduction of the actuating-fluidmedium or agent to the parts operated thereby and to effect suchoperation by the movement of such parts.

With these and other objects in view the invention consists,essentially, in the construction, combination, and arrangement ofparts,substantially as more fully described in the followingspecification, and illustrated in the accompanying drawings, formingpart of this application, in which- Figure 1 is a front elevational viewof a construction to which the invention is shown as applied, and Fig. 2is a side elevational view of the same. 1

Similar characters .of reference designate corresponding partsthroughout both views.

Referring to the drawings, the reference character 1 designates theupright members or timbers of aframe or structure and which may supporttop pieces or plates 2, and to the 0 uprights 1 maybe securedcross-pieces 3 and 4, the former being connected by vertical brace ortimber 5, substantially as shown in the drawings; but the constructionof the frame or structure is not material, as the same 5 is onlyemployed to illustrate the relative position of the parts shown andforms no part of this invention.

J ournaled in bearings 6 upon the top of the frame is the shaft 7,carrying a band or pulley wheel 8, which is the driving-wheel of theengine, and on one end of, the shaft 7 is a crank-disk 9, havingconnected therewith a pitman l0, movably connected with a crosshead 11upon a piston-rod 12, working in a stuffing box or gland 13 upon one endof a cylinder or like device 14, preferably mounted on a bracket or legs15, secured, to the base or floor of the structure 1 essentially in themanner shown.

A storage tank or reservoir 16 for the actuating agent or medium may beemployed and may be provided with connections 17 and 18, with theinduction pipes or tubes 19 of the cylinder, and which are preferablyprovided with valves or cut-ofis 20 to control the admission of thefluid to the cylinder. The cylinder 14 is also preferably provided withvalvecontrolled eduction or exhaust connections 21, and the valves inthe connections 19 and 21 are preferably constructed with long stems 22,to which are connected arms 23 and 24, respectively, and these arms arepreferably movably connected with operating-rods 25 and 26, that, inturn, are connected by links 27 with a rack or curved plate 28,constructed to be engaged and operated by a pincarrying wheel orsegmental rack 29, preferably movably mounted in brackets 30, desirablysecured upon the cylinder 14, and the rack or wheel 29 is preferablyprovided with a pin or similar device 31 to engage an apertured angleplate or bracket 32 uponan actuating-rod 33, preferably movably mountedin guides 34; upon the cylinder 14.

The piston-rod 12 is preferably provided with an arm 35, constr ucted totravel in the slot in the free end of the actuating-rod 33 during themajor portion of the stroke or travel of the piston-rod 12, but toengage and reciprocate said actuating-rod near the end of each stroke,and thereby turn the wheel or segment 29,which elevates or depresses therack 28, thereby elevating or depressing the operating-rods 25 and 26 toclose or open the valves controlling the induction or eduction of thefluid to the cylinder, as will be readily understood.

The operation of this invention will be readily understood from theforegoing description when taken in connection with the accompanyingdrawings and the following explanation thereof. The actuating-fluidmedium or agent passes from the reservoir 16 through the connections 17and 18 to the respective ends of the cylinder; but the valves opened atthe same time.

or cut-offs in the connections will not both be Therefore itis presumedthat the piston has reached its maximum upward position,and that theinductionvalve at the upper end of the cylinder is opened, and that theactuating fluid will pass into the upper end of the cylinder to forcethe piston down, and that the valve in the cduction-pipe at the bottomof the cylinder is open, while the valve in the lower induction pipe orconnection is closed. In this position of the parts described the pistonwill travel downwardly until the arm 35, carried thereby, contacts withthe lug or stop 36 at the bottom of the slot in the actuating-rod 33,whereupon the position of the valves or cut-offs in the induction andeduction pipe or connection will be reversed, and the actuating fluidwill enter the lower part of the cylinder to force the piston up, thespent fluid theretofore introduced escaping from the upper end of thecylinder through the open exhaust or eduction connection in the upperend of the cylinder,as will be readily understood. When the piston-rod12 shall have reached its maximum upstroke, the arm 35 thereon will haveagain elevated the actuating-rod 33 and restored the parts to theposition supposed at the beginning of the description of the operationhereof.

This invention is in no manner limited to use with the mechanism hereindescribed and shown, and the same is employed merely as a typepfapparatus with which the invention may be employed in order toillustrate an application thereof; but it will be understood that thisvalve-operating mechanism is constructed to be used with any mechanismwherein it is desired to control the induction and eduction of theactuating fluid by'the travel of the parts driven by such fluid.

I claim- 1. A valve-operating mechanism provided with a cylinder havinga piston and pistonrod, an actuating-rod operated by the pistonrod, asegment moved by said actuating-rod, operating-rods connected with theinlet and outlet valves of said cylinder and a rackbar in engagementwith said segment and connected with said operatingrods to control theinlet and exhaust of the cylinder.

2. A valve-operating mechanism provided with a cylinder having inlet andexhaust connections and a piston and piston-rod, valves in saidconnections having elongated stems carrying arms, operating-rodsconnected therewith, a rack bar connected with said rods, a segmentinengagement with said bar, an actuatingrod to move the segment and meanscarried by the piston-rod to propel the actuating-rod.

3. A valve-operating mechanism provided with a cylinder havinga piston,a piston-rod and connections, valves in said connections havingelongated stems carrying arms, operating rods connected therewith, arack bar connected with said rods, a segment in engagement with saidbar, a slotted actuatingrod to move said segment and an arm carried bysaid piston-rod and passing through said slot, whereby the valves areactuated by means of the piston-rod.

4. A valve-operating mechanism provided with a cylinder having a pistonand connections, valves in the latter having elongated stems carryingarms, operatingrods connected at each end to the respective arms of theinduction and eduction valves, an actuating-rod mounted in guides on thecylinder and having a slotted end, a piston -rod connected with thepiston and carrying an arm to operate in said slot and means operated bysaid actuating-rod to control the valves.

5. A valve-operating mechanism provided with a cylinder having a pistonand connections, valves in the latter having elongated stems carryingarms, operatingrods connected at each end to the respective arms of theinduction and eduction valves, an actuating-rod mounted in guides on thecylinder and having a slotted end, a piston -rod connected with thepiston and carrying an arm to operate in said slot, a rack-bar connectedwith said operating-rods, a device in engagement with said bar and withsaid actuatingrod, whereby the valves are actuated by the movement ofthe piston-rod.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

J. W. KEMP, L. B. ALDERETE.

